midterms Flashcards
7 PROCESSING ROOM DESIGN
- size and location
- construction consideration
- entrances
- lighting and ventilation
- drainage system
- water source
- equipment
equipment (tips fahd)
thermometer
ID printet
passbox
stainless steel processing tanks
film bin
automatic processor
hanger
dark room timer
thermometer (with cup)
dial
thermometer (for chemical)
glass
thermometer (with shell)
stainless
thermometer (for room)
digital (40-300F)
Valuable substance that can be reclaimed from the fixer solution
silver
polluting agent and must not bellowed to flow into a normal drainage
silver
Process used to harvest the silver from the photographic processing solutions
silver recovery
silver recovery can be fone in different ways depending on:
- The size of your operation
- The concentration of silver in your effluent
- The silver discharge limits
advantages of silver recovery
- beneficial to the environment
- supplemental financial resource
Most common and economic method
CHEMICAL RECOVERY CARTRIDGE
It uses a cartridge through which the fixer can pass
chemical recovery cartridge
chemical recovery cartridge uses a _____ through which the _____ can pass
cartridge , fixer
Inside the cartridge is a canister with ______ in the form of very fine _______or heavy fine _______
iron
steel wool
screen mesh
Used by small volume users
chemical recovery cartridge
Use in a small volume number of patients
chemical recovery cartridge
Most efficient technique
electrolytic method
It uses an electric cathode, with an immersed negative charge, in a canister containing a positive charge
electrolytic method
Technique which can used to produce very low silver concentrations in the effluent going to the sewer
CHEMICAL PRECIPITATION TECHNIQUES
Common precipitating agents
alkali metal salts of sulfide (sodium, sulfide, potassium sulfide, etc)
A window into the human body
Medical Image
It is formed by the imaging modalities that use various forms of radiation &energy to open the body to visualization
Medical Image
degree of exactness
fidelity
Refers to the fidelity with which the anatomical structure that is under examination is imaged on the radiograph
Radiographic Quality (Image Quality)
is the ability to image two separate objects and visually distinguish one from the other
RESOLUTION
refers to the ability to image small objects that have high subject contrast such as a bone-soft tissue interface, a breast microcalcification, or a calcified lung nodule
SPATIAL RESOLUTION
is the ability to distinguish anatomical structures of similar subject contrast such as liver-spleen and gray matter-white matter.
CONTRAST RESOLUTION
The actual size of objects that can be imaged is always _____ under conditions of high subject contrast than under conditions of low subject contrast
smaller
is the random fluctuation in the Optical Density of the image
noise
